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src/com/hippo/ehviewer/util/EhUtils.java

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+/*
+ * Copyright (C) 2014 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.util;
+
+import java.io.File;
+
+public final class EhUtils {
+
+    /**
+     * Get gallery for read and download
+     * @param gid
+     * @param title
+     * @return
+     */
+    public static File getGalleryDir(int gid, String title) {
+        return new File(Config.getDownloadPath(),
+                Utils.standardizeFilename(gid + "-" + title));
+    }
+
+    /**
+     * Index start from 0
+     *
+     * @param index
+     * @param extension
+     * @return
+     */
+    public static String getImageFilename(int index, String extension) {
+        return String.format("%08d.%s", index + 1, extension);
+    }
+
+
+    public static String[] getPossibleImageFilenames(int index) {
+        String prefix = String.format("%08d.", index + 1);
+        return new String[]{prefix + "jpg", prefix + "jpeg", prefix + "png", prefix + "gif"};
+    }
+
+}